Update: Apple has now released Logic Pro 9 ($199) and MainStage 2 ($29) in the Mac App Store. Weighing in at 413 MB, Logic Pro 9 requires 3.6GB of disk space and still comes with all the built-in plug-ins and sounds. However, for commenters pointing out the many GBs of additional content bundled with the soon to be discontinued $499 Logic Studio, Apple is making 19GB of additional content available via in-app downloads. Otherwise the app, at first glance, appears to be largely unchanged.

Apple today issued a notice to resellers announcing that it has discontinued the boxed versions of its Logic Studio and Logic Express audio software packages effectively immediately, also announcing that the Logic Pro 9 and MainStage 2 components will be moving to the Mac App Store for distribution.

The report notes Apple said “new” versions of Logic Pro 9 and MainStage 2 (components of Logic Pro) would be coming to the Mac App Store, although it’s unclear what that means for Logic Express (essentially a light version of Logic Pro 9), and Soundtrack Pro. The packaged version of Logic Studio currently sells for $499.

In June Apple released a completely redesigned, and some would argue scaled back, version of their Final Cut Pro video editing suite called Final Cut Pro X. That update was also released as a download through the Mac App Store, but wasn’t well received, and some fear that the Logic apps are headed in the same direction. Apple just recently launched a universal iOS version of GarageBand, their consumer/amateur version of Logic Pro that ships with iLife. No word on a potential Logic Studio iOS app.